Smart soft composite actuator with shape retention capability using embedded fusible alloy structures

Wei Wang, Hugo Rodrigue, Sung Hoon Ahn

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

This work presents a new kind of shape memory alloy (SMA) based composite actuators that can retain its shape in multiple configurations without continuous energy consumption by changing locally between a high-stiffness and a low-stiffness state. This was accomplished by embedding fusible alloy (FA) material, Ni-chrome (Ni-Cr) wires and SMA wires in a smart soft composite (SSC) structure. The soft morphing capability of SMA-based SSC structures allows the actuator to produce a smooth continuous deformation. The stiffness variation of the actuator was accomplished by melting the embedded FA structures using Ni-Cr wires embedded in the FA structure. First, the design and manufacturing method of the actuator are described. Then, the stiffness of the structure in the low and high-stiffness states of the actuator were measured for different applied currents and heating durations of the FA structure and results show that the highest stiffness of the actuator is more than eight times that of its lowest stiffness. The different shape retention capability of the actuator were tested using actuators with one or two segments and these were compared with a numerical model.

Original languageEnglish
Pages (from-to)507-514
Number of pages8
JournalComposites Part B: Engineering
Volume78
DOIs
StatePublished - 2015 Apr 11

Fingerprint

Actuators
Stiffness
Composite materials
Shape memory effect
Wire
Composite structures
Numerical models
Melting
Energy utilization
Heating

Keywords

  • A. Polymer-matrix composites (PMCs)
  • A. Smart materials
  • B. Mechanical properties
  • Shape retention

Cite this

@article{3a60e651c38542abb8d8fd43a828ec3b,
title = "Smart soft composite actuator with shape retention capability using embedded fusible alloy structures",
abstract = "This work presents a new kind of shape memory alloy (SMA) based composite actuators that can retain its shape in multiple configurations without continuous energy consumption by changing locally between a high-stiffness and a low-stiffness state. This was accomplished by embedding fusible alloy (FA) material, Ni-chrome (Ni-Cr) wires and SMA wires in a smart soft composite (SSC) structure. The soft morphing capability of SMA-based SSC structures allows the actuator to produce a smooth continuous deformation. The stiffness variation of the actuator was accomplished by melting the embedded FA structures using Ni-Cr wires embedded in the FA structure. First, the design and manufacturing method of the actuator are described. Then, the stiffness of the structure in the low and high-stiffness states of the actuator were measured for different applied currents and heating durations of the FA structure and results show that the highest stiffness of the actuator is more than eight times that of its lowest stiffness. The different shape retention capability of the actuator were tested using actuators with one or two segments and these were compared with a numerical model.",
keywords = "A. Polymer-matrix composites (PMCs), A. Smart materials, B. Mechanical properties, Shape retention",
author = "Wei Wang and Hugo Rodrigue and Ahn, {Sung Hoon}",
year = "2015",
month = "4",
day = "11",
doi = "10.1016/j.compositesb.2015.04.007",
language = "English",
volume = "78",
pages = "507--514",
journal = "Composites Part B: Engineering",
issn = "1359-8368",

}

Smart soft composite actuator with shape retention capability using embedded fusible alloy structures. / Wang, Wei; Rodrigue, Hugo; Ahn, Sung Hoon.

In: Composites Part B: Engineering, Vol. 78, 11.04.2015, p. 507-514.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Smart soft composite actuator with shape retention capability using embedded fusible alloy structures

AU - Wang, Wei

AU - Rodrigue, Hugo

AU - Ahn, Sung Hoon

PY - 2015/4/11

Y1 - 2015/4/11

N2 - This work presents a new kind of shape memory alloy (SMA) based composite actuators that can retain its shape in multiple configurations without continuous energy consumption by changing locally between a high-stiffness and a low-stiffness state. This was accomplished by embedding fusible alloy (FA) material, Ni-chrome (Ni-Cr) wires and SMA wires in a smart soft composite (SSC) structure. The soft morphing capability of SMA-based SSC structures allows the actuator to produce a smooth continuous deformation. The stiffness variation of the actuator was accomplished by melting the embedded FA structures using Ni-Cr wires embedded in the FA structure. First, the design and manufacturing method of the actuator are described. Then, the stiffness of the structure in the low and high-stiffness states of the actuator were measured for different applied currents and heating durations of the FA structure and results show that the highest stiffness of the actuator is more than eight times that of its lowest stiffness. The different shape retention capability of the actuator were tested using actuators with one or two segments and these were compared with a numerical model.

AB - This work presents a new kind of shape memory alloy (SMA) based composite actuators that can retain its shape in multiple configurations without continuous energy consumption by changing locally between a high-stiffness and a low-stiffness state. This was accomplished by embedding fusible alloy (FA) material, Ni-chrome (Ni-Cr) wires and SMA wires in a smart soft composite (SSC) structure. The soft morphing capability of SMA-based SSC structures allows the actuator to produce a smooth continuous deformation. The stiffness variation of the actuator was accomplished by melting the embedded FA structures using Ni-Cr wires embedded in the FA structure. First, the design and manufacturing method of the actuator are described. Then, the stiffness of the structure in the low and high-stiffness states of the actuator were measured for different applied currents and heating durations of the FA structure and results show that the highest stiffness of the actuator is more than eight times that of its lowest stiffness. The different shape retention capability of the actuator were tested using actuators with one or two segments and these were compared with a numerical model.

KW - A. Polymer-matrix composites (PMCs)

KW - A. Smart materials

KW - B. Mechanical properties

KW - Shape retention

UR - http://www.scopus.com/inward/record.url?scp=84929455558&partnerID=8YFLogxK

U2 - 10.1016/j.compositesb.2015.04.007

DO - 10.1016/j.compositesb.2015.04.007

M3 - Article

AN - SCOPUS:84929455558

VL - 78

SP - 507

EP - 514

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

SN - 1359-8368

ER -